Method of producing an optically active .beta.-hydroxy...

Details Method of producing an optically active .beta.-hydroxy... Method of producing an optically active .beta.-hydroxy...

C - Chemistry, Metallurgy

07

C

C07C 309/24 (2006.01) C07C 303/22 (2006.01) C07C 303/30 (2006.01) C07C 303/32 (2006.01) C07C 309/08 (2006.01)

Patent

CA 2310302

Disclosed is a method of producing an optically active .beta.-hydroxy sulfonic acid compound comprising hydrogenating a .beta.-keto sulfonic acid compound represented by formula 1: Image where R1 represents an alkyl or a phenyl group, which may be substituted, and R2 represents sodium or an alkyl group, in an acidic solvent, in the presence of an asymmetric catalyst comprising a complex of bivalent Ru, having 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl as a ligand, to produce a compound represented by formula 2: Image where R1 and R2 are as defined above, and * designates an asymmetric carbon atom.

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